The server C disk continues to grow, and a prompt will pop up as soon as you log in today. There is insufficient space, leaving only 183 MB.

After searching for a while, I realized that the system log had not been cleaned up. It was so full. After checking, it was actually as many as 6 gigabytes. It seems that we can't underestimate this small log file. It's really scary over the years.

After cleaning up, a large area of open space was immediately vacated. Location: : %systemroot%/system32/logfiles/

System: Windows Server 2003 Enterprise Edition SP1